package com.qingke.dao;

import java.util.List;

import com.qingke.pojo.Grade;

public interface GradeMapper {
	
	List<Grade> selectByTime();
    int deleteByPrimaryKey(Integer id);

    int insert(Grade record);

    int insertSelective(Grade record);

    Grade selectByPrimaryKey(Integer id);

    int updateByPrimaryKeySelective(Grade record);

    int updateByPrimaryKey(Grade record);
}